Hello Răzvan, Thank you for your response. I think I am making a mess of this. Maybe if I explain what I am trying to accomplish. Please consider the following:
U 2015/03/10 15:31:47.591498 25.21.74.12:5060 -> 192.168.2.5:5060 INVITE sip:9187321212@74.75.31.22 SIP/2.0. Contact: <sip:gw+cust__orig_1_gw1@25.21.74.12:5060 ;transport=udp;gw=cust__orig_1_gw1>. U 2015/03/10 15:31:47.598538 192.168.2.5:5060 -> 192.168.2.10:5060 INVITE sip:9187321212@192.168.2.10:5060 SIP/2.0. Contact: <sip:gw+cust__orig_1_gw1@25.21.74.12:5060 ;transport=udp;gw=cust__orig_1_gw1>. U 2015/03/10 15:31:47.857774 192.168.2.10:5060 -> 192.168.2.5:5060 SIP/2.0 100 Trying. Contact: <sip:9187321212@192.168.2.10:5060>. U 2015/03/10 15:31:47.858765 192.168.2.10:5060 -> 192.168.2.5:5060 SIP/2.0 200 OK. Contact: <sip:9187321212@192.168.2.10:5060>. U 2015/03/10 15:31:47.903559 192.168.2.5:5060 -> 25.21.74.12:5060 SIP/2.0 200 OK. Contact: <sip:192.168.2.20:5060>. U 2015/03/10 15:31:47.945974 25.21.74.12:5060 -> 192.168.2.5:5060 ACK sip:192.168.2.20:5060 SIP/2.0. Contact: <sip:gw+cust__orig_1_gw1@25.21.74.12:5060 ;transport=udp;gw=cust__orig_1_gw1>. U 2015/03/10 15:31:48.204696 192.168.2.5:5060 -> 192.168.2.10:5060 ACK sip:9187321212@192.168.2.10:5060 SIP/2.0. Contact: <sip:gw+cust__orig_1_gw1@25.21.74.12:5060 ;transport=udp;gw=cust__orig_1_gw1>. U 2015/03/10 15:32:31.488749 25.21.74.12:5060 -> 192.168.2.5:5060 BYE sip:192.168.2.20:5060 SIP/2.0. Contact: <sip:gw+cust__orig_1_gw1@25.21.74.12:5060 ;transport=udp;gw=cust__orig_1_gw1>. U 2015/03/10 15:32:31.658439 192.168.2.5:5060 -> 192.168.2.10:5060 BYE sip:9187321212@192.168.2.10:5060 SIP/2.0. Contact: <sip:gw+cust__orig_1_gw1@25.21.74.12:5060 ;transport=udp;gw=cust__orig_1_gw1>. 25,21.74.12 Underline Carrier 192.168.2.5 Opensips 192.168.2.10 Gateway The contacts that I am attempting to do is modify is: Message Two: Original: Contact: <sip:gw+cust__orig_1_gw1@25.21.74.12:5060 ;transport=udp;gw=cust__orig_1_gw1>. Modified: Contact: <sip:192.168.2.5:5060>. Message Five: Original: Contact: <sip:192.168.2.20:5060>. Modified: Contact: <sip:74.75.31.22:5060>. Message Seven: Original: Contact: <sip:gw+cust__orig_1_gw1@25.21.74.12:5060 ;transport=udp;gw=cust__orig_1_gw1>. Modified: Contact: <sip:192.168.2.5:5060>. Message Nine: Original: Contact: <sip:gw+cust__orig_1_gw1@25.21.74.12:5060 ;transport=udp;gw=cust__orig_1_gw1>. Modified: Contact: <sip:192.168.2.5:5060>. When I attempt to making such modifications, I am receiving errors such as: Failed to match the sequential request to a known dialog Attempt to route with preloaded Route's What are the requirements to shape the Contact header to point to the right IP and still maintain the preloaded route. Kind Regards, Terrance
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